介绍了一种采用CMOS数字电路、数字拨盘开关整定、无辅助电源的断电延时继电器的组成及工作原理。
Introduction was made to the composition and working principle of a power-off time delay relay which adopts CMOS digital circuit, digital dial disc for switch setting and without auxiliary power.
调节整定电流时，瞬时脱扣电流应大于短延时脱扣电流，短延时脱扣电流应大于长延时脱扣电流。
When regulating current, the instantaneous tripping current must larger than the short time delay current must larger than the long time delay tripping current.
主要特点为固定的整定值(有或没有旋钮)，远程调节、专用插销及执行延时功能。
A few examples available features are fixed Settings (with or without knobs), remote adjustments, special pin configurations or performing a specific time delay function.
YTD2为推杆下降延时型的电力液压推动器，由于其具有可以无级整定的机械延时作用，所以它特别适用于机械传动装置需作缓慢制动的场合。
YTD2 series are an electric-hydraulic thrusters in lowering delay type, for those series play a role in a mechanical transfer of a slow braking.
YTD2为推杆下降延时型的电力液压推动器，由于其具有可以无级整定的机械延时作用，所以它特别适用于机械传动装置需作缓慢制动的场合。
YTD2 series are an electric-hydraulic thrusters in lowering delay type, for those series play a role in a mechanical transfer of a slow braking.
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